Window-screen.



L. L. COWBLL 6L G.' UNSER. WINDOW SCREEN. APPLIOATION FILED JUNE 8, 1908.

LEO L. COWELL AND GEORGE UNSER, OF LUDINGTON, MICHIGAN.

WINDOW-SCREEN.

Specification of Letters Patent.

' Patented March 23, 1909.

Application filed June 8, 1908. vSerial No. 437,441.`

, be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved spring roller window screen.

The object of the invention is to provide a simply constructed and elfi cient spring roller screen the casing of which may be mounted on a window sill and the screen fabric de-A tachably connected at its free end to the lower rail of the window sash without injuring or inarring either.

`Another object of the invention is to provide means for l'iolding the roller stationary against the tension of its spring when it is desired to substitute new screen fabric.

With these and other objects in view, the invention consists of certain novel features of construction, combination and arrangeinent of parts, as will be more ful ly described and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 represents a front elevathm of a window with this improved screen applied and with parts broken out, the window sash being shown in raised position; Fig. 2' is longitudinal section through the casing and roller; Fig. 3 is a transverse vertical section through the casing on line 3-73 of Fig. l with the screen inclosed therein; Fig. l is apcrspeetive view of the spring roller det-ached and shown with one end of thesscrcen fabriccrmuected therewith, Aparts of said roller being broken out.

Fig. 5 is a fragmoiital-y lierspeetive view partly in section.

In the en'ibodiinent illustra'ited, a tubular casing v1 is shown of any desired shape and preferably of a length corres'iomling to the width of the window to which it is to be applied. This casing is provided with apertured feet as 2 for securing it by means of screws or other fastening' devices to the window sill as is shown in Fig. l. The rear side of this casing is provided with a longitudinaf y slot 3 extending the length thereof and preferably provided at its opposite edges with Out-turned flanges as 4, for a purpose to be described. This casing is provided at its opposite ends with closures 5 and 6 having apertures formed in the centers thereof and provided with inwardly extending sleeves or thinibles as 7 and 8 attached thereto for a purpose to be described. A short shaft 9 is inserted through one end of the casing and projects for a suitable distance beyondthe sleeve therein and is fixed to said sleeve to prevent rotation thereof. A tubular-roller 10 is mounted within said casing at its opposite ends on the sleeves 7 and 8 and adapted to revolve thereon. This roller is preferably formed of sheet metal and is slit longitudinally as at 11, throughout the length thereof and one edge of Asaid slit has tongues as 12, formed4 thereon by slitting the tube transversely a short distance, and these tongues are bent back to 'forni connecting members to receive the screen fabric as hereinafter described.

A solid core 13 is disposed within the roller 10 and is lixed thereto, preferably by means of screws which pass through the tube at opposite sides of the slit therein and are cngaged with said core to hold it rigidly against turning. A coil wire spring '1.4 is arranged within the roller 10 between the outer end of the core 1-3 and the inner end of the shaft 9 and is secured at its opposite ends to said core and shaft respectively, whereby it is 'adapted to exert a winding tendency on the roller 10. This roller 10 is preferably made of less length than the casing 1 and the end thereof which is engaged with the sleeve at the shaft carried end thereof is adapted to be moved longitudinally thereon to cause it to clamp said sleeve and hold said roller against turning when desired. The inner end of the core 13 is beveled and is adapted to be. engaged by a key 15 which is inserted through the open end of the casingl and is designed to force the roller in the opposite direction and cause the end thereof to bind on the sleeve 7 which as shown at the right of the casing (Fig. 2) has, as its Outer end is approached an external diameter greater than the internal diameter of the (zo-acting end of roller 1 and hold it against turning when it is desired to insert a new piece of screen fabric in place of an old one which may have become worn or disfigured.

The screen fabric 17 is preferably provided at one e'nd with a reinforcing plate 1S which is adapted to be inserted between the tongues 12 and the outer face of the tube or roller 10 l l-O and clamped thereby in operative position. The other end'of the screen is clamped between n member 19 preferably composed of :t wooden strip. The opposite ends of this strip are cut ont on one fece thereof, as show at 20 for e purpose to oe described. A metal plate 21 is arranged on the other side of sind screen end and is secured to the wooden strip by ineens of screws or other suitable fnstening devices and is provided with spertures adapted to register with the apertures in the strip to permit the screws or other fastening ineens to pass therethrough for securingthe screen to the lower rail of it window sash. This plate 21 is provided with e downwardlyinclined flange 22 whichis adepted to engage with one of the flanges 4 on the casing 1 when the window is in lowered position to lock the screen to said casing.

Guide strips 23 and 24 are adapted to he secured to the opposite sides of the window frame by Ineens of epertured lugs as 25, or in any other desired manner, and are preferably composed of pieces 0r strips of sheet metal folded longitudinally with the sides thereof spaced npsrt n sufficient distance to receive the edges of the screen fabric and permit it to slide freely therein and into which the ends of the plate 21 :ire adapted to slide, one ineinber of the guide strip passing between said ends and the cut-sway end portions 2O of the wooden strip 19.

When it is desired to insert n. new piece of screen fabric it is only necessary to insert theA key 15 with the beveled end thereof first through the open end of the casing 1 and force the roller longitudinally into clamping engagement with the sleeve :it the spring carried end thereof und then tin-ning seid roller until the. clamping longues come opposite the slot 3 in the casing, when the longues 12 may be pressed open and the old screen fabric removed, a new piece inserted in its place and the device again pressed int o clamping contact therewith.

liroin the foreeoii`i, description, teken in connection with the ccoinpsnying drawings, the construction and operation of the invention will he readily understood without requiring n. more extended explanation.

"ferions chin, s in the form, proportion and the minor details of construction may he resorted to without departingr from the principle or sacrificing any of the :nlvn-ntsges of the invention, as defined in the appended claims.

We claim es our invention:

1. A. spring roller screen comprising a. tubular casing provided with monnsfor attachment to a. Window sill and haring :i slot or opening extending longitudinally thereof, bearings arranged at opposite ends of said casing end comprising inwardly projecting cylindrical members, :i split tubulin' spring roller mounted in seid casing on said cylindricel runners, seid roller being shorter than o' :ind adapted 'lo move longitudisc w e connected with seid roller and ineens for holding seid roller against turning.

2. .i spring roller screen, comprising e, tnbnlnr casing provided with Ineens for attachment to :t windenY sill :ind having e slot or opening extending longitudinally thereof, a. split tubulin roller mounted :it opposite ends on seid cylindrical members, u. spacing core nrrenged in seid roller intermedietely of its ends end fired thereto et opposite sides of the slit therein, e. coil spring disposed in said roller :ind connected :tt one 'end to one of seid cylindrical members end et its other end to seid core. ineens for dctcchebly connecting :L screen fabi-ic to seid roller, :ind ineens for holding sii-id roller against inrning.

.f1 spring roller screen comprisinge. tnbw r raising ','n'orided with ineens for attachment To s. window sill :rnd hiring slot or opening extending longituilinnllg thereof` c}.'lindricel members projecting inwardly into sii-id casing from the opposite ends thereof, :i split tubulin' roller mounted et opposite ends on seid -cj-flindricnl members, n spacing core :iri'nnged ,in seid roller intcrmedietely sind c \lim`:.iicel members end et its other end to seid cere, seid core having its cul-er end beveled, n key sdnpted to he inserted in seid roller and haring s. beveled end to lit against the beveled endV el' seid core for forcing the relier ng nst the tension of its spring to fricticnzillf. eng the :jy'lindricsl member on which scid spring` carried end is inmuned.

4. A spring roller screen comprising a. tuhnlnr c Y"ng provided with means for connecting it' to e window sill cylindrical niembers projecting into seid casing from the opposite ends thereof, e. split tnbnlnr spring roller mounted et its opposite ends on seid cylindrical members, ineens for connecting the opposite ei of seid split rollciintermedietely of its ends, tongues cnt out from one edge of seid slit end folded to for-in screen fnbric clamping members, end ineens for locking seid roller against' turning when desired. v

In testimony whereof we. lieve hereunto set our hands in presence of two subscribing witnesses.

LEU L. CO'WELL. GEORGE UNSER Witnesses H. G. BEEK, E. M. REER.

7 in on seid cylindrical members, 

